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2. Exploitation of Rye (Secale cereale L.) and its Residues for Weed Suppression in Vegetable Cropping Systems;Barnes,1981
3. Liberation of organic substances from higher plants and their role in the soil sickness problems;Borner;Botanical Review,1960
4. The injurious after-effects of sorghum;Breazeale;Agronomy Journal,1924
5. Methods of winter wheat production at Fort Hayes Branch Station;Cole;United States Department of Agriculture Bulletin No. 1094,1922